NC/PEG共混体系的相容性研究  

Investigation on the Compatibility of NC/PEG Blended System

作　　者：康冰[1] 王利刚[1] 李笑江[1] 宋振伟[1] 丁黎[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2014年第6期75-78,共4页Chinese Journal of Explosives & Propellants

摘　　要：采用差示扫描量热法(DSC)和动态力学分析法(DMA)研究了不同质量比的硝化棉/聚乙二醇(NC/PEG)共混体系的相容性。结果表明,NC/PEG共混体系中PEG的熔点、结晶度和结晶熵随NC含量的增加明显降低,共混组分相互作用参数χ1,2为负值,即共混体系在热力学上具有相容性。共混体系的玻璃化转变温度随NC含量的增加均向低温移动,并且当共混体系中NC与PEG质量比为1∶1时,共混体系呈现单一的玻璃化转变温度。The compatibility of nitrocellulose/polyethylene glycol（NC/PEG）blended system with different mass ratio was studied by DSC and DMA.Results show that with increasing the content of NC in NC/PEG blended system,the melting point,crystallinity and entropy of crystallization of PEG decrease obviously.The value of interaction parameterχ1,2of the blended component is negative,i.e.the blended system possesses the compatibility on thermodynamics.With increasing the content of NC,the glass transition temperature of the blended system shifts downwards.When the mass ratio of NC and PEG in the blended system is 1∶1,the blended system reveals a single glass transition temperature.

关 键 词：分析化学 热分析 硝化棉 聚乙二醇 共混体系 相容性 玻璃化转变温度 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] X93[环境科学与工程—安全科学]